Lots of sun today has led to a calm end to the work week. Highs topped out in the upper 30s to near 40, but a breeze from the northwest helped it feel a bit colder than that. Some clouds are now filtering into the area, which will allow skies to trend cloudy as we head through the night.

Tonight: Clouds will continue to thicken this evening and we will see mostly cloudy conditions by morning. Cold temperatures of today will not fall too far thanks to the clouds, but should still reach the mid-to-upper 20s across the area.

Tomorrow: Saturday begins cloudy before precipitation arrives during the afternoon and then lasts into the evening. Some places, especially north and west of D.C., may briefly see snow before a change to rain showers. Highs will rise to around 40 across the area and rain may briefly change back to snow before ending in the evening. Little or no snow accumulations are expected.

Not only is that possible, I would venture to suggest it is likely based on current model guidance. A high under 20 is also possible during the period. This should be quite a cold spell. Be sure to check local rivers and such, if it lasts as long as progged they may well freeze over or come close to it. Doesn't happen too often around here!